CN109968476B - High-efficient bamboo green device that removes of mao bamboo thick bamboo tube based on water jet - Google Patents
High-efficient bamboo green device that removes of mao bamboo thick bamboo tube based on water jet Download PDFInfo
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- CN109968476B CN109968476B CN201910320959.6A CN201910320959A CN109968476B CN 109968476 B CN109968476 B CN 109968476B CN 201910320959 A CN201910320959 A CN 201910320959A CN 109968476 B CN109968476 B CN 109968476B
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- 239000011425 bamboo Substances 0.000 title claims abstract description 204
- 241001330002 Bambuseae Species 0.000 title claims abstract description 201
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 200
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 200
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 200
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 238000005520 cutting process Methods 0.000 claims abstract description 38
- 244000302661 Phyllostachys pubescens Species 0.000 claims abstract description 27
- 235000003570 Phyllostachys pubescens Nutrition 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 88
- 238000003825 pressing Methods 0.000 claims description 55
- 210000000078 claw Anatomy 0.000 claims description 32
- 238000004146 energy storage Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 abstract 1
- 230000001788 irregular Effects 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
- B24C7/0015—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
- B24C7/0023—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
- B24C7/003—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with means for preventing clogging of the equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
- B27L1/14—Debarking or removing vestiges of branches from trees or logs; Machines therefor using jets of fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a high-efficiency bamboo green removing device for a moso bamboo tube based on water jet, which comprises a water jet generating unit, a positioning supporting unit and a clamping rotary pushing unit, wherein the positioning supporting unit is arranged on the clamping rotary pushing unit; the water jet generating unit is used for forming a water jet (110) for cutting the bamboo green (201), and the jet direction of the water jet (110) is tangential to a cylindrical surface on the inner wall side of the bamboo green (201) and close to the outer wall side of the bamboo flesh (203); the positioning support unit is used for supporting and positioning the bamboo tube (200) and providing a passage for the bamboo tube (200) to travel; the clamping rotary pushing unit is used for clamping and positioning the end part of the bamboo tube (200) and pushing the bamboo tube (200) to advance along the axial rotation of the bamboo tube (200), so that the water jet (110) can continuously cut the green bamboo (201). The device of the invention utilizes the high-performance cutting characteristic of water jet flow, improves the processing efficiency of removing the bamboo green of the bamboo tube, reduces the surface roughness and solves the difficult problems of processing accuracy and stability.
Description
Technical Field
The invention relates to the technical field of biomass material processing, in particular to a novel green cutting processing device, and specifically relates to a high-efficiency bamboo green removing device for a moso bamboo tube based on water jet.
Background
The moso bamboo is the bamboo species with the widest planting area and the greatest utilization value in China, has short harvesting period and high yield, has wide application prospect in industries such as artificial boards, buildings, furniture, medicine and health and the like, and is an important renewable resource for replacing wood and relieving the contradiction between wood supply and demand in China. The bamboo tube is made of green bamboo, flesh and yellow bamboo from outside to inside. Wherein, the bundle tissue of the green part is compact and has high hardness, and is difficult to soften, spray and glue, and the green part needs to be cut off in the forming process of bamboo artificial boards and the like.
The phyllostachys pubescens green removing is a basic process for realizing the further processing and utilization of phyllostachys pubescens, manual stripping or mechanical cutting stripping is usually adopted for the phyllostachys pubescens at the present stage, the green removing efficiency is low, and the processing surface is rough. The key problems to be solved for the processing of the phyllostachys pubescens barrel are how to improve the processing efficiency, ensure the processing surface quality, overcome the bending of the phyllostachys pubescens barrel, the outline structure of an irregular cylinder and the like.
The prior art mainly adopts a wire brush to manually scrape and strip or adopts planing processing to remove the bamboo green, the former has high labor cost and lower scraping efficiency, and the latter is generally applicable to bamboo strips. In addition, the method also has the defects that the cutting process often causes severe abrasion or blockage of a cutter/abrasive, rough processing surface and the like by utilizing turning, grinding, floating cutting and other modes, and particularly, the parameters adopted in the cutting process often cannot be too large, and the axial brittle fracture is easily caused by the too large cutting parameters. The literature (Liu Gongzheng, wang Xinzhou, li Yanjun. Bamboo tube crack-free flattening production technology [ J ]. Forest industry, 2018, v.45; no.273 (05): 41-45) and literature (CN 201610804312.7, a processing method for removing green and yellow of bamboo tube) report a floating cutting green removing method for crack-free flattening production of bamboo tube, and the adopted combined floating cutter can realize cutting of green materials with the processing rate of 5-10m/min, so that the working efficiency of traditional cutting processing is greatly improved by floating cutting processing, and the influence of bending and irregular appearance of moso bamboo on processing is overcome, but the defects of serious surface layer bamboo fiber tearing, rough processing surface, large cutter loss and the like exist. In addition, there is a literature (Xu Zhaojun. Study on the surface of a green bamboo by laser treatment [ J ]. Wood working machine, 2017 (05): 16-18.) study on the use of laser to remove a green bamboo, which is low in efficiency and high in cost, for example, when the laser moving speed is 0.15m/min, the thickness of the cut green bamboo is 45 μm, and it is difficult to meet the requirement of large-scale industrial application. The self-adaptive type bamboo green remover reported in the literature (CN 201820432532.6, self-adaptive type bamboo green remover) also belongs to mechanical cutting processing, and has the problems of limited processing efficiency, rough processing surface and the like.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a high-efficiency bamboo green removing device for a moso bamboo tube based on water jet; the bamboo green removing device utilizes the high-performance cutting characteristic of water jet flow, can improve the processing efficiency of bamboo tube green removing and solve the difficult problem that the bending and irregular cylindrical characteristics of the moso bamboo tube affect the green skin removing processing accuracy and stability.
The invention aims at solving the problems through the following technical scheme:
high-efficient device of removing bamboo green of mao bamboo thick bamboo tube based on water jet, its characterized in that: the bamboo green removing device comprises a water jet generating unit, a positioning supporting unit and a clamping rotary pushing unit; wherein: the water jet generating unit is used for forming water jet for cutting the bamboo green, and the jet direction of the water jet is tangential to the cylindrical surface of the inner wall side of the bamboo green and the side close to the outer wall side of the bamboo flesh; the positioning support unit is used for supporting and positioning the bamboo tube and providing a passage for the bamboo tube to travel; the clamping rotary pushing unit is used for clamping and positioning the end part of the bamboo tube and pushing the bamboo tube to advance along the axial direction of the bamboo tube in a rotary mode, so that the water jet can continuously cut the green bamboo.
The positioning support unit comprises an arc-shaped base and an arc-shaped frame which form a bamboo tube advancing channel, wherein the arc-shaped base is used for supporting the bamboo tube, and the radius R of the arc-shaped base is larger than the radius R of the cut bamboo tube; the arch frame is provided with a positioning and pressing mechanism which can apply radial acting force to the bamboo tube and is used for positioning the bamboo tube.
The positioning and compressing mechanism comprises a first positioning and compressing mechanism positioned at the upper part of the bamboo tube, a second positioning and compressing mechanism positioned at the left side and a third positioning and compressing mechanism positioned at the right side, and the positioning and compressing mechanism can shrink or stretch according to control signals; the positioning and pressing mechanism is provided with an elastic element, and the elastic element enables the positioning and pressing mechanism to adapt to the surface deformation of the bamboo tube.
The positioning support unit also comprises a bamboo tube support mechanism for providing a supporting force for the bamboo tube, wherein the bamboo tube support mechanism is arranged at the front side of the water jet so as to prevent the bamboo tube from generating excessive radial runout when approaching to a cutting area of the water jet; the bamboo tube supporting mechanism is provided with an elastic element, and the elastic element can generate deformation corresponding to the height of the bamboo joints of the moso bamboo when the bamboo joints of the moso bamboo pass through.
The clamping rotary propelling unit comprises a clamping unit, a rotary unit and a propelling unit; wherein: the clamping unit is used for fixedly supporting the bamboo tube from the inner cavity of the bamboo tube so as to facilitate the stable rotation and running of the bamboo tube; the rotating unit is used for connecting the clamping unit and driving the clamping unit to move in the rotating process; and the pushing unit is used for connecting the rotating unit and pushing the rotating unit to move along the axial direction of the bamboo tube.
The clamping unit comprises a pressing claw, an elastic telescopic adjusting mechanism and a pressing claw shaft, wherein the elastic telescopic adjusting mechanism is arranged along the circumferential direction of the pressing claw shaft, the front end of the elastic telescopic adjusting mechanism is provided with the pressing claw, and the pressing claw presses the inner wall of the cavity of the bamboo tube and applies an outward radial force; the elastic expansion adjusting mechanism can contract or extend according to the control signal.
The rotating unit comprises a rotating shaft and a rotating shaft motor for driving the rotating shaft to rotate, one end of the rotating shaft is arranged at the output end of the rotating shaft motor, and the other end of the rotating shaft is connected with a pressing claw shaft in the clamping unit through a universal joint.
The propelling unit comprises a screw motor and a screw, a screw nut capable of forming a screw nut propelling mechanism with the screw is arranged at the bottom of the rotating shaft motor in the rotating unit, and the screw motor is used for driving the screw to rotate.
The water jet generating unit comprises a water tank for supplying water, a water pump, a pressurizer, an energy storage tank, a water jet controller, a nozzle, a sand tank and an abrasive valve, wherein the water pump is used for sucking water in the water tank and outputting the water to the energy storage tank capable of realizing a pressure stabilizing function, the energy storage tank is communicated with the water jet controller through a pipeline to provide water flow with stable pressure, and the water jet controller is connected with the pressurizer through a pipeline with a pressure gauge to realize pressurization; the abrasive tank filled with abrasive for cutting controls the addition amount of the abrasive through an abrasive valve; the water jet controller provides water with a certain pressure to the nozzle, and the sand tank provides abrasive for cutting to the nozzle, so that the nozzle jets water jet with a certain pressure for cutting the bamboo green.
The nozzle is arranged at the inlet side of the arc-shaped base in the positioning and supporting unit and provides water jet with working pressure of 50-300 MPa; and a filtering mechanism is arranged between the water tank and the water pump.
Compared with the prior art, the invention has the following advantages:
the bamboo green removing device utilizes the high-performance cutting characteristic of water jet, can realize the feeding rate of more than 30m/min, and can greatly improve the processing efficiency of removing the bamboo green from the bamboo tube; meanwhile, the section formed by water jet processing is smooth and burr-free, so that the roughness of the processed surface of the phyllostachys pubescens subjected to green removal can be greatly reduced; in addition, an arc positioning structure is arranged in the device, the arc concave surfaces of the bamboo tube and the arc base and the contact point of the roller surface of the positioning roller at the front end of the positioning and compacting mechanism are taken as references, the rotation eccentricity caused by irregular shapes of the bamboo tube is not needed to be considered, the water jet cutting range is limited in the green bamboo range, and the problems that the bending and irregular cylindrical characteristics of the bamboo tube of the phyllostachys pubescens affect the green skin removing processing accuracy and stability are solved; meanwhile, the processing medium of the water jet is pure water and abrasive, so that the water jet is green and pollution-free, and meets the green manufacturing and environmental protection requirements under the new situation.
Drawings
FIG. 1 is a schematic diagram of a combined structure of a water jet unit and a positioning support unit of the green bamboo removing device;
FIG. 2 is a schematic diagram of a combined structure of a positioning support unit and a clamping rotary propulsion unit of the green bamboo removing device;
fig. 3 is a schematic diagram showing the combination state of the arc-shaped base and the moso bamboo of the green removing device.
Wherein: 101-a water tank; 102-a filtering mechanism; 103-a water pump; 104, a sand tank; 105-a supercharger; 106, an energy storage tank; 107—a water jet controller; 108-an abrasive valve; 109-a nozzle; 110-water jet; 200-bamboo tube; 201-bamboo green; 202-bamboo joints of moso bamboos; 203-bamboo meat; 301-an arc-shaped base; 302-arch-shaped frame; 303—a first positioning and pressing mechanism; 304-a second positioning and compacting mechanism; 305-a third positioning and compressing mechanism; 306-a bamboo tube supporting mechanism; 401-pressing claws; 402—a press jaw shaft; 403-elastic telescopic adjusting mechanism; 404-a rotation axis; 405-a rotating shaft motor; 406-a lead screw; 407-lead screw motor.
Description of the embodiments
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1-3: the device for removing the bamboo green of the moso bamboo tube efficiently based on the water jet comprises a water jet generation unit, a positioning support unit and a clamping rotary pushing unit; wherein: a water jet generating unit for forming a water jet 110 for cutting the bamboo green 201, wherein the jet direction of the water jet 110 is tangential to the cylindrical surface of the inner wall side of the bamboo green 201 and the outer wall side close to the bamboo flesh 203; a positioning support unit for supporting and positioning the bamboo tube 200 and providing a passage through which the bamboo tube 200 travels; the clamping and rotating pushing unit is used for clamping and positioning the end of the bamboo tube 200 and pushing the bamboo tube 200 to travel along the axial direction of the bamboo tube 200 in a rotating manner, so that the water jet 110 can continuously cut the green bamboo 201.
As shown in fig. 1 to 3, the positioning and supporting unit includes an arc-shaped base 301 and an arc-shaped frame 302 constituting a travel path of the bamboo tube 200, the arc-shaped base 301 being for supporting the bamboo tube 200 and a radius R of the arc-shaped base 301 being greater than a radius R1 of the cut bamboo tube 200; the arch frame 302 is provided with a positioning and pressing mechanism which can apply radial acting force to the bamboo tube 200 and is used for positioning the bamboo tube 200. Each positioning and pressing mechanism can shrink or stretch according to the control signal, and an elastic element is arranged on the positioning and pressing mechanism, and the elastic element enables the positioning and pressing mechanism to adapt to the surface deformation of the bamboo tube 200; the positioning and compacting mechanism comprises a first positioning and compacting mechanism 303 positioned at the upper part of the bamboo tube 200, a second positioning and compacting mechanism 304 positioned at the left side and a third positioning and compacting mechanism 305 positioned at the right side, wherein the positioning and compacting front end of each positioning and compacting mechanism is a positioning roller, and the roller surface and the surface of the bamboo tube 200 form flexible linear contact for compacting and positioning. The positioning and supporting unit further comprises a bamboo tube supporting mechanism 306 for providing a supporting force for the bamboo tube 200, wherein the bamboo tube supporting mechanism 306 is arranged at the front side of the water jet 110 to prevent the bamboo tube 200 from generating excessive radial runout when approaching to the cutting area of the water jet 110; an elastic element is provided on the bamboo tube support mechanism 306, and the elastic element can generate a deformation corresponding to the height of the bamboo joints 202 when the bamboo joints 202 pass through.
As shown in fig. 2, the grip rotation propulsion unit includes a grip unit, a rotation unit, and a propulsion unit; wherein: a clamping unit for fixedly supporting the bamboo tube 200 from the inner cavity of the bamboo tube 200 so as to facilitate stable rotational travel of the bamboo tube 200; the rotating unit is used for connecting the clamping unit and driving the clamping unit to move in the rotating process; and a pushing unit for connecting the rotating unit and pushing the rotating unit to travel along the axial direction of the bamboo tube 200. Specifically, the clamping unit comprises a pressing claw 401, an elastic telescopic adjusting mechanism 403 and a pressing claw shaft 402, wherein the elastic telescopic adjusting mechanism 403 is arranged along the circumferential direction of the pressing claw shaft 402, the pressing claw 401 is arranged at the front end of the elastic telescopic adjusting mechanism 403, the pressing claw 401 presses the inner wall of the cavity of the bamboo tube 200 and applies outward radial force, and the elastic telescopic adjusting mechanism 403 can shrink or stretch according to a control signal; the rotating unit comprises a rotating shaft 404 and a rotating shaft motor 405 for driving the rotating shaft 404 to rotate, one end of the rotating shaft 404 is arranged at the output end of the rotating shaft motor 405, and the other end of the rotating shaft 404 is connected with a pressing claw shaft 402 in the clamping unit through a universal joint; the propulsion unit includes a screw motor 407 and a screw 406, a screw nut capable of constituting a screw nut propulsion mechanism with the screw 406 is provided at the bottom of the rotation shaft motor 405 in the rotation unit, and the screw motor 407 is used for driving rotation of the screw 406.
As shown in fig. 1-2, the water jet generating unit includes a water tank 101 for supplying water, a filtering mechanism 102, a water pump 103, a booster 105, an energy storage tank 106, a water jet controller 107 and a nozzle 109, and a sand tank 104 and an abrasive valve 108, the filtering mechanism 102 is used for filtering the supplied water of the water tank 101, the water pump 103 is used for sucking the water in the water tank 101 and outputting to the energy storage tank 106 capable of realizing a pressure stabilizing function, the energy storage tank 106 is communicated with the water jet controller 107 through a pipeline to provide a pressure-stabilized water flow and the water jet controller 107 is connected with the booster 105 through a pipeline with a pressure gauge to realize the boost; the abrasive pot 104 filled with abrasive for cutting controls the addition amount of the abrasive through the abrasive valve 108; the water jet controller 107 supplies water having a certain pressure to the nozzle 109, the sand pot 104 supplies abrasive for cutting to the nozzle 109, so that the nozzle 109 ejects water jet 110 having a certain pressure for cutting the bamboo green 201, and the nozzle 109 is provided at the inlet side of the arc-shaped base 301 in the positioning support unit and supplies water jet 110 having an operating pressure of 50MPa to 300MPa.
Examples
As shown in fig. 1-3, the high-efficiency bamboo green removing device for the moso bamboo tube based on water jet comprises a water jet generating unit, a positioning supporting unit and a clamping rotary pushing unit.
A water jet generating unit for forming a water jet 110 for cutting the bamboo green 201, wherein the jet direction of the water jet 110 is tangential to the cylindrical surface of the inner wall side of the bamboo green 201 and the outer wall side close to the bamboo flesh 203; the water jet generating unit comprises a water tank 101, a filtering mechanism 102, a water pump 103, a sand tank 104, a booster 105, an energy storage tank 106, a water jet controller 107, an abrasive valve 108 and a nozzle 109, wherein water in the water tank 101 is filtered by the filtering mechanism 102, pumped by the water pump 103, stabilized by the energy storage tank 106, pressurized by the booster 105 and supplied to the nozzle 109 by the water jet controller 107, and is sprayed out by the nozzle 109 to form a water jet 110, the sand tank 104 is filled with abrasive for cutting and the abrasive addition amount is controlled by the abrasive valve 108, the water jet controller 107 controls the water jet 110 to form pressure, and the working pressure of the water jet 110 is 50-300 MPa.
A positioning support unit for supporting and positioning the bamboo tube 200 and providing a passage through which the bamboo tube 200 travels; the positioning and supporting unit comprises an arc-shaped base 301, an arc-shaped frame 302, a first positioning and pressing mechanism 303, a second positioning and pressing mechanism 304, a third positioning and pressing mechanism 305 and a bamboo tube supporting mechanism 306, wherein a section of arc surface for positioning the outer surface of the bamboo tube 200 is arranged on the arc-shaped base 301, and the radius R of the arc surface is larger than the radius R1 of the cut bamboo tube 200; the nozzle 109 in the jet flow generating unit is arranged on one side of an arc-shaped base 301, the jet direction of the nozzle is tangential to the inner wall side of the bamboo green 201 and is close to the cylindrical surface on the outer wall side of the bamboo pulp 203, an arch-shaped frame 302 is arranged on the arc-shaped base 301 for the bamboo tube 200 to pass through, a first positioning and pressing mechanism 303 is arranged at the top of an inner cavity of the arch-shaped frame 302, a second positioning and pressing mechanism 304 is arranged at the left side of the inner cavity, a third positioning and pressing mechanism 305 is arranged at the right side of the inner cavity, a bamboo tube supporting mechanism 306 is arranged at the rear side of the inner cavity, and the first positioning and pressing mechanism 303, the second positioning and pressing mechanism 304 and the third positioning and pressing mechanism 305 apply radial acting force to the bamboo tube 200, and the bamboo tube supporting mechanism 306 provides supporting force for the bamboo tube 200 and prevents the bamboo tube 200 from generating excessive radial runout in the area close to the jet flow cutting area.
A clamping and rotating pushing unit for clamping and positioning the end of the bamboo tube 200 and rotationally pushing the bamboo tube 200 along the axial direction of the bamboo tube 200, so that the water jet 110 can continuously cut the bamboo green 201; the clamping rotary pushing unit comprises a pressing claw 401, a pressing claw shaft 402, an elastic telescopic adjusting mechanism 403, a rotary shaft 404, a rotary shaft motor 405, a screw 406 and a screw motor 407, wherein the pressing claw 401 is arranged at the front end of the elastic telescopic adjusting mechanism 403, the elastic telescopic adjusting mechanism 403 is arranged on the pressing claw shaft 402, 2-3 elastic telescopic adjusting mechanisms 403 are uniformly distributed in the circumferential direction of the pressing claw shaft 402, the pressing claw shaft 402 is connected with the rotary shaft 404 driven by the rotary shaft motor 405 through a universal joint, a screw nut is arranged at the bottom of the rotary shaft motor 405 and can move along a straight line under the driving of the screw 406, and the screw 406 is driven by the screw motor 407. In order to realize the axial movement of the bamboo tube 200, the rotation shaft motor 405 shown in fig. 2 is combined with a screw motor 407 through a screw 406, and the rotation shaft motor 405 can also be combined with a rack-and-pinion structure, a sprocket-and-chain structure, a belt-wheel structure, or the like to realize the linear movement.
The first positioning pressing mechanism 303, the second positioning pressing mechanism 304, the third positioning pressing mechanism 305 and the elastic telescopic adjusting mechanism 403 can be contracted or expanded according to control signals, and a typical implementation method thereof can be realized through telescopic cylinder, besides the scheme, the scheme can be realized through a scheme that a motor drives a lead screw or the motor drives a gear instead of a rack and the like. The rigid force of the mechanism is prevented, and the radial force applied to the bamboo tube 200 can be adjusted by a spring element, such as a spring; elastic elements are also provided on the bamboo tube support mechanism 306 to generate a deformation corresponding to the height of the bamboo joints 202 as the bamboo joints 202 pass.
As shown in fig. 1 and 2, the application principle of the high-efficiency bamboo green removing device for the moso bamboo tube based on water jet is described as follows: forming a water jet 110 with the pressure of more than 50MPa by using a water jet generating device, wherein the jet direction of the water jet 110 is tangential to the inner side surface of the bamboo green 201 close to the bamboo pulp 203, and the bamboo tube 200 is axially fed at a speed V while rotating at an angular speed omega while the jet 110 is jetted; in order to realize the rotary motion, a rotary shaft motor 405 is arranged, the rotary shaft motor 405 drives a pressing claw shaft 402, an elastic telescopic adjusting mechanism 403 is arranged on the pressing claw shaft 402, and a pressing claw 401 is arranged on the elastic telescopic adjusting mechanism 403; the pressing claw 401 is used for clamping the bamboo tube 200 from the inside and transmitting rotation torque; the elastic telescopic adjusting mechanism 403 can extend after receiving the clamping signal, and drives the pressing claw 401 to press the bamboo tube 200, and when the bamboo tube 200 needs to be loosened after the processing is finished, the pressing claw 401 can be driven to loosen the bamboo tube 200 through contraction action; in order to realize the horizontal movement of the bamboo tube 200, the rotating shaft motor 405 is connected to the screw 406 through a screw nut structure, and the screw 406 is driven by the screw motor 407 to realize the axial movement of the bamboo tube 200. The pressing claw shaft 402 and the rotating shaft 404 are connected through a universal joint, so that the jumping of the bamboo tube 200 caused by irregularity in the rotating connection process can be compensated.
As shown in fig. 3, considering that the bamboo tube 200 is in an irregular cylindrical shape, the arc base 301 is provided, the radius of the arc on the arc base 301 is larger than the radius of the processed bamboo tube 200, so that the contact point of the bamboo tube 200 and the arc base 301 is the lowest point of the bamboo tube 200, the influence of the irregular cylindrical bamboo tube 200 on cutting can be reduced, and the cutting thickness S (i.e. the thickness of the layer of the bamboo green 201) is ensured to be relatively stable.
The bamboo green removing device utilizes the high-performance cutting characteristic of water jet, can realize the feeding rate of more than 30m/min, and can greatly improve the processing efficiency of removing the bamboo green from the bamboo tube; meanwhile, the section formed by water jet processing is smooth and burr-free, so that the roughness of the processed surface of the phyllostachys pubescens subjected to green removal can be greatly reduced; in addition, an arc positioning structure is arranged in the device, the contact point of the arc concave surfaces of the bamboo tube 200 and the arc base 301 and the roller surface of the positioning roller at the front end of the positioning and compacting mechanism is used as a reference, the rotation eccentricity caused by irregular shapes of the bamboo tube is not needed to be considered, the water jet cutting range is limited in the green bamboo range, and the problems that the bending and irregular cylindrical characteristics of the moso bamboo tube influence the green skin removing processing accuracy and stability are solved; meanwhile, the processing medium of the water jet is pure water and abrasive, so that the water jet is green and pollution-free, and meets the green manufacturing and environmental protection requirements under the new situation.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by the above embodiments, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.
Claims (8)
1. High-efficient device of removing bamboo green of mao bamboo thick bamboo tube based on water jet, its characterized in that: the bamboo green removing device comprises a water jet generating unit, a positioning supporting unit and a clamping rotary pushing unit; wherein: a water jet generating unit for forming a water jet (110) for cutting the bamboo green (201), wherein the jet direction of the water jet (110) is tangential to a cylindrical surface on the inner wall side of the bamboo green (201) and close to the outer wall side of the bamboo flesh (203); the positioning support unit is used for supporting the positioning bamboo tube (200) and providing a passage for the bamboo tube (200) to travel; the clamping rotary pushing unit is used for clamping and positioning the end part of the bamboo tube (200) and rotationally pushing the bamboo tube (200) to advance along the axial direction of the bamboo tube (200), so that the water jet (110) can continuously cut the green bamboo (201); the positioning support unit comprises an arc-shaped base (301) and an arc-shaped frame (302) which form a travel channel of the bamboo tube (200), wherein the arc-shaped base (301) is used for supporting the bamboo tube (200), and the radius R of the arc-shaped base (301) is larger than the radius R1 of the cut bamboo tube (200); the arch frame (302) is provided with a positioning and pressing mechanism which can apply radial acting force to the bamboo tube (200) and is used for positioning the bamboo tube (200); the positioning and supporting unit also comprises a bamboo tube supporting mechanism (306) for providing supporting force for the bamboo tube (200), wherein the bamboo tube supporting mechanism (306) is arranged at the front side of the water jet (110) so as to prevent the bamboo tube (200) from generating excessive radial runout when approaching to the cutting area of the water jet (110); the bamboo tube supporting mechanism (306) is provided with an elastic element, and the elastic element can generate deformation corresponding to the height of the bamboo joints (202) when the bamboo joints (202) pass through.
2. The efficient bamboo green removing device for the moso bamboo tube based on the water jet flow of claim 1, wherein the device is characterized in that: the positioning and compressing mechanism comprises a first positioning and compressing mechanism (303) positioned at the upper part of the bamboo tube (200), a second positioning and compressing mechanism (304) positioned at the left side and a third positioning and compressing mechanism (305) positioned at the right side, and the positioning and compressing mechanism can shrink or stretch according to control signals; the positioning and pressing mechanism is provided with an elastic element, and the elastic element enables the positioning and pressing mechanism to adapt to the surface deformation of the bamboo tube (200).
3. The efficient bamboo green removing device for the moso bamboo tube based on the water jet flow of claim 1, wherein the device is characterized in that: the clamping rotary propelling unit comprises a clamping unit, a rotary unit and a propelling unit; wherein: the clamping unit is used for fixedly supporting the bamboo tube (200) from the inner cavity of the bamboo tube (200) so as to facilitate the stable rotation and running of the bamboo tube (200); the rotating unit is used for connecting the clamping unit and driving the clamping unit to move in the rotating process; and the pushing unit is used for connecting the rotating unit and pushing the rotating unit to move along the axial direction of the bamboo tube (200).
4. The efficient bamboo green removing device for the moso bamboo tube based on water jet flow of claim 3, wherein the device is characterized in that: the clamping unit comprises a pressing claw (401), an elastic telescopic adjusting mechanism (403) and a pressing claw shaft (402), wherein the elastic telescopic adjusting mechanism (403) is arranged along the circumferential direction of the pressing claw shaft (402), the pressing claw (401) is arranged at the front end of the elastic telescopic adjusting mechanism (403), and the pressing claw (401) presses the inner wall of a cavity of the bamboo tube (200) and applies an outward radial force; the elastic expansion and contraction adjusting mechanism (403) can contract or expand according to a control signal.
5. The efficient bamboo green removing device for the moso bamboo tube based on water jet flow of claim 3, wherein the device is characterized in that: the rotating unit comprises a rotating shaft (404) and a rotating shaft motor (405) for driving the rotating shaft (404) to rotate, one end of the rotating shaft (404) is arranged at the output end of the rotating shaft motor (405), and the other end of the rotating shaft is connected with a pressing claw shaft (402) in the clamping unit through a universal joint.
6. The efficient bamboo culm removing device based on water jet according to claim 3 or 5, wherein: the propelling unit comprises a screw motor (407) and a screw (406), a screw nut capable of forming a screw nut propelling mechanism with the screw (406) is arranged at the bottom of the rotating shaft motor (405) in the rotating unit, and the screw motor (407) is used for driving the screw (406) to rotate.
7. The efficient bamboo green removing device for the moso bamboo tube based on the water jet flow of claim 1, wherein the device is characterized in that: the water jet generation unit comprises a water tank (101) for supplying water, a water pump (103), a pressurizer (105), an energy storage tank (106), a water jet controller (107) and a nozzle (109), a sand tank (104) and an abrasive valve (108), wherein the water pump (103) is used for sucking water in the water tank (101) and outputting the water to the energy storage tank (106) capable of realizing a pressure stabilizing function, the energy storage tank (106) is communicated with the water jet controller (107) through a pipeline to provide water flow with stable pressure, and the water jet controller (107) is connected with the pressurizer (105) through a pipeline with a pressure gauge to realize pressurization; the abrasive tank (104) filled with abrasive for cutting controls the addition amount of the abrasive through an abrasive valve (108); the water jet controller (107) supplies water with a certain pressure to the nozzle (109), and the sand tank (104) supplies abrasive for cutting to the nozzle (109), so that the nozzle (109) jets water jet (110) with a certain pressure for cutting the bamboo green (201).
8. The efficient bamboo culm removing device based on water jet flow of claim 7, wherein: the nozzle (109) is arranged at the inlet side of the arc-shaped base (301) in the positioning and supporting unit and provides a water jet (110) with the working pressure of 50MPa-300 MPa; and a filtering mechanism (102) is arranged between the water tank (101) and the water pump (103).
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| CN201910320959.6A CN109968476B (en) | 2019-04-21 | 2019-04-21 | High-efficient bamboo green device that removes of mao bamboo thick bamboo tube based on water jet |
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| CN110253700A (en) * | 2019-08-01 | 2019-09-20 | 福州市晋安区凤儒名工艺品有限公司 | It is a kind of for removing the green cutter device of moso bamboo thick bamboo tube surface bamboo blueness |
| CN113733270B (en) * | 2021-09-15 | 2023-04-28 | 江苏滋百农生物技术研究院有限公司 | Pretreatment equipment before bamboo fiber extraction |
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